Spanish Language Stack Exchange is a question and answer site for students, teachers, and linguists wanting to discuss the finer points of the Spanish language. It's 100% free, no registration required.

Nadie ha podido abrir esa puerta. =Nobody has been able to open that door.
En los últimos años nadie ha podido abrir esa puerta. =In recent years nobody has been able to open that door.Nunca nadie ha podido abrir esa puerta. =Nobody has ever been able to open that door.